Cokekid Posted April 1, 2020 Share Posted April 1, 2020 I am a little confused on the installation of this valve. On the parts list (page 83} it shows upper corner three parts are required #6666,6654,& list353082 S . I was wondering were does this Brass Valve fit in.? The first number above 86H 6654 is for 38-48 The second number above 56H 6654 is for 46-48 Gerry Link to comment Share on other sites More sharing options...
38ShortopConv. Posted April 1, 2020 Share Posted April 1, 2020 (edited) The brass valve is a 12 LB. pressure restriction valve for the hydraulic lifters on 38 onward LZ. motors. It screws in at the rear of the valve valley under a 1' screw on cap. The other ball valve looks like the front oil pump relief valve on Hydraulic lifter motors. That chart should explain.... 36/ 37 LZ. don't use the brass valve. The oil pump relief valve is at the rear of the valve valley in 36/37 motors. Different pressures. What year is your motor? That chart picture shows a 36/37 LZ. motor. Confused? Edited April 1, 2020 by 38ShortopConv. (see edit history) Link to comment Share on other sites More sharing options...
Cokekid Posted April 2, 2020 Author Share Posted April 2, 2020 38ShortopConv. My engine is for a 48 Lin Cont. with Hydraulic Lifters I was informed that I would only be allowed so many kb to post in my first message. The 1st photo I posted never indicated what year the engine was. On the same page it showed a photo of the 36-37 engine. Maybe both photos of a engine from 36-37. I will follow your advice on were to install these parts. Thanks, Gerry Link to comment Share on other sites More sharing options...
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